Chain-drive sand-reel attachment



July 24, 1928. 1,678,236

E. TIMBS ET AL CHAIN DRIVE SAND REEL ATTACHMENT Filed Oct 4, 1926 2Sheets-Sheet 1 July 24, 1928. 1,678,236

E. TIMBS ET AL CHAIN DRIVE SAND REEL ATTACHMENT Filed Oct. 4, 1926 2Sheets-Sheet 2 J2 J2 M 40 71 7 3- 4/ 43 4 V a m "E J 4i 7 i M 9 J4 4V6 4zza 44 "J0 4 41 2%! 1o 39 as M I 4 g 27 27 42 3 25 M 18 g Q' fi 1 a gnum1 on shock which would tend to break the sand Patented July 24, 1928.

UNITED S ATES PATENT OFFICE.

EDWARD TIMBS, OF LOS ANGELES, AND LEWISE} ZERBE, OF MONETA, CALIFORNIA,ASSIGNORS TO THE NATIONAL SUPPLY COMPANY OF DELAWARE, OF NEW YORK N.Y.,"A CORPORATION OF DELAWARE.

CHAIN-DRIVE SAND-REEL ATTACHMENT.

Application filed October 4, 1926. Serial No. 139,468.

tomarily constructed, the sand reel is placed in the derrick between theengine and the band wheel with its shaft substantially par-.

allel to the shaft ,of the band wheel. In drilling operations, the sandreelis used to wind up or pay out the sand line. The sand line is usedprimarily to handle the bailer and for certain other auxiliary drillingoper ations. These operations, especially those of handling the bailer,require the provision ofmea ns to secure greatflexibility in thehandling of the sand line. It must be capable of allowing the baileractuated solely by its own weight torun freely into the hole at greatspeed, and yet be always'under perfect control. Such braking means mustbe provided that the descending bailer can be quickly brought to a stopat any point and yet so gradually as not to cause any jar or line. a

In filling the bailer, and in such operations as measuring and markingthe depth of the hole on the sand line, the sand reel must be providedwith means by which it can be easily and conveniently handled so thatthebailer can be alternately raised and lowered without grabbing. Thisprovision is necessary to enable the driller to determine or judge bythe feel of his operating device just what is taking place in'the hole.In the drillingrigs as used at the present time, this delicate yetpositivecontrol of the sand reel has been accomplished by mounting thebearings of the sand reel shaft in F such manner that at one end it canbe swung forward and back from a neutral position by means of theknuckle-post. In its neutral position, the sand reel is entirelydisconnectv When the knuckle post is swung forward, a friction wheelmounted on the sand wheel shaft is moved forward into frictional contactwith the face of the revolving band wheel. By this means, the sand reelis so rotated as to wind up the sand line and to raise whatever isattached thereto.

When the knuckle post is swung to the rear of the neutral position, thefriction pulley is brought into frictional contact with the back brakeby means of which the rotation of this sand reel in either direction isrestrained. The motion of the knuckle post is controlled bya singlelever manipulated by the driller and which is conveniently positionedjust forward of the Samson post from which point all drilling operationsare controlled in the standard rig.

One: of the greatest difiiculties incident to the use of this sand reelassembly as above set forth, lies in the fire hazard created by thesame, dueto the frictional driving contact of the driving wheel shaftandthe frictional braking against a wooden post of arresting therotation of the same.

Another great disadvantage of this assembly lies in the great strainplaced upon the bearings within whichthe sand reel shaft is journaled sothat the same quickly wears and must be frequently replaced or repaired.

Many times standard rigs have been constructed and are now in use inwhich the sand reel assembly, such as that, previously described, isemployed, and it is an object of this invention to provide an attachmentwhich may be mounted upon the sand reel shaftby rigidly securing thefree or floating bearing thereof in place to a post on the derrick, andwhich attachment is adapted to be driven by a chain drive from the bandwheel shaft, and in which'attachment there is provided clutch means forreleasably clutching thedrive from the band wheel shaft to the sand reelshaft so that the same will be released "to permit the free rotation ofthe sand reel to allow the free play of thesandline, and in whichattachment means are provided for braking the rotation of the sand reelshaft when it is desired to arrest winding up or paying out of the sandline.

Another object of this invention is to provide an attachment adapted tobe mount ed upon the sand reel shaft as customarily mounted in anemployed in standard drilling rigs and which attachment is soconstructed that the same may be mounted in either position so that thesame is driven from either side of the band wheel shaft, depending uponthe particular conditions found in each individual drilling rig as tospace for permitting the mounting ofth e driving sprocket upon the bandwheel shaft and the locating and positioning of the atof the frictiontype are mounted for releasably engaging the driving sprocket with thesaid; quill shaft and operably connected with wl clutch means brakemeans are proand which attachment includes as an integral part of theassembly thereofclutch and brake actuating means-which are operablyconnected with a single operating lever which may be connected to thecustomary rodsto the operating lever mounted in the floor of thedrilling rig in advance of the Samson post so that; on actuation of theop,

erating lever in the rig in one direction, the clutch is engaged todrive the sand reel shaft and on actuation of the operating lever to theopposite position the clutch is released and braking means are applied.

Other objects and advantages of this invention will be apparent from thefollowing detailet description of a preferred embodiment thereof asillustrated in the accompanying drawings, in which drawings 7 Figurel isa top plan diagrammati View of thestandard rig illustrating asand reelattachment as embodying this invention as mounted upon the sand reelshaft, the derrick of the rig being broken away to illustrate therespective positions of the hole, Samsonpost, and the control lever ofthe san d reel attachment.

Figure 2 is an enlargedfragmental eleva tion, illustrating the sand reelattachment embed ing this invention as mounted noon the sand reel shaft.I

Figure 3 is an end elevation partly in section. and taken substantiallyon the line 38 of Figure 2. showing a preferred manner ofslidablyiseeuring the quill'shaft to the sand reel shaft. Figure 4 is acentral sectional side elevation of the sandreel attachment embodyingthis inventionr v 7 I 1 i In the preferred embodiment of thisinvention', illustrated in the accompanying drawings, 1 illustrates aderrick mounted on the usual mud sills 2. & indicates a primary sourceof power of any suitablefonu such as a'steaiu engine, gas engine,electric finotoiyor the like; mountedon the sills 2-.

The engine 3 drives the band wheel 4. mounted upon the band 'h-heelshaft 5 which carries the crank 6. The crank 6 has a plurality ofboltholes (not shown) formed in any suitable or desirable mannerr Thebearing 13 is customarily the loosely mount ed bearing upon which thesand reel shaft 12 1s rocked by means of the knuckleposttnot shown)customarily provided. The bear ng 13, in accordance with this invention,is fixer to the post 15 and the attachment embodying this invention ismounted-on the shaft '12 which isthen rigidly mounted in position;

Mounted upon the shaft 12 isia sleeve' or quill shaft- 16 which issecured to the shaft 12 by any suitable means, such as a key 17'Journaled' upon a bearing "18 mounted; upon the quill shaft 16 is aclutch and sprocket-hub 19. Secure-d} to the 'e'nd of the quill shaft 16is a retaining disc '20 for-main taining'the hub 19in position 'uponthesaid shaft. Securedto the hub 19 is a sprockct21. Mounted upon the bandfwheel shaft 5 in alignment with the sprocket 21 is a second sprocketoverwhich the band-wheel shaft sprocket and sprocket 21 a chain 22istrained for driving the sprocket 21 fromthe band wheel shaft 5.

Clutch means are provided for releasably engaging the sprocket 21 withthe quilllshaft 16, which means are preferablyof thefriction typeand areof the following construetionp Cast-integral with the hub 19 isa flange23, which flange 23 a ansversely extending circumferential flangcQ-lformed at its periphery. orn ied integral with the flange 24L orpreferably formed as an independent part because of ease in assemblingand taking down a split clutch drive-ring 25, which split clutch.drive-ring 25 is provided with lagging26at its opposite sides.

' Splined or otherwise slidably' secured to. w the quill shaft- 16' is ahub 27. .Mounted onthe shaftlfi intermediate the hubj27 and the hub l9is a clutch spider 28. .Mounted I on the opposite sides ofrthe clutchdrive-ring 25 are inner and outer plates ancl.30..;.

"of clutch drive pins 32 arepassed.

Means are provided for releasably securing the plates 29 and 30 with thelag sides of the clutch drive ring 29, which means are preferably of thefollowing construction -Formed integral with the spider 28 is a flange31 through which flange 31 a plurality clutch drive pins 82 are providedat one end with enlarged heads upon which the outer plate 30 is slidablymounted. Driving bushings 34- are mounted upon the driving pins on theopposite side of the drive-ring and mounted upon. the driving bushing 34is the inner plate 29. Interposed in comple inentary bores formed in theplates 29 and p are compression springs 36 which operate to normallyexpand the engaging plates 29 and 30 away from'the clutch drive-ring 25.

Formed integral with or secured to the outer plate 30 are arms 37, whicharms 87 are pivotally secured at pins 38 to one end of the toggle links39, which toggle links 39 are pivotally secured at pins 40 to links 4:1,which links 41 are pivotally secured at pins 42 to the hub 27. I

Formed on the toggle links 39 are bosses 43, in which bosses'43 studs 44are screwthreaded so as to engage at their inner ends the outerperiphery of the inner plates 29.

The engagement of the studs 4-4 with the,

inner plates 29 1nay be adjusted by screwthreading the studs l i intothe bosses 43 and a lock nut l5 is provided for locking the adjustment.

Formed integral with or secured to the flange 28' is a brake rim46,-upon which brake rim 46 a brake band 47 is mounted.

Means are provided for actuating the brake band a? to engage thesamewith the brake rim l6 and for engaging and disengaging the plates 29and 30 with the clutch drive ring 25, which means are preferably of thefollowing construction:

A channel iron 18 is secured :to the mud sills 2 by any suitable ordesirable means and a belt 49 is secured to an angle iron 50 which issecured to the channel iron t8 and is passed through an eye 51 securedtothe dead end of the brake band 47. Means are provided for adjustablysecuring the bolt 49 to the eye 51, which means are indicated at 52.

Journaled in bearings 53isecured to the channel. iron 48 is a rocksh'aft5et which is secured as illustrated at 55 to the live end of thebrake band 4&7. The rock shaft 54 is bent to form or is secured to anactuating lever 56, which actuating lever 56 is secured to a rod 57which extends forward of the drill rig and is secured to a rock shaft 58which is at its opposite end provided with an operating lever 59 whichis mounted in position in the derrick 1 in advance of the Samson post 8.

Secured to the rock shaft 54 is a mitre gear 60, which mitre gear 60meshes with The a mitre gear segment 61 which isformedintegral withersecured to an operating link 62, which operating link 62 is securedto arod 61. The rod 64 is adjustably secured by means of an adjustableU-bolt connection 65 to a link66, which link 66 is secured to the clutchactuating fork 63'. The U-bolt connection is adjustable by means of aset-screw 67 held in position by means of a lock-nut 68., Thisadjustable means of connecting the gear 61 with the clutch actuatingfork 63 permits the same to be easily adjusted so that the clutch willbe actuated or released when the brake is released or applied and alsopermits adjustment to compensate for wear of the brake band.

It will be obvious from the foregoing that as the operating lever 56 isactuated from the operating lever 59 that the clutch plates 29 and 30will be engaged with the clutch driving ring 25 as'the brake rim 47 isrea reverse direction, the brake band 47 will be engaged with the brakerim-56 as the plates 29 and 30 are disengaged from driving contact withthe clutch driving ring 35.

The quill shaft 16' is mounted on the shaft 12 so that the same may beeasily slid to any desired position relative'to the band wheel 4t andfor'this purpose I prefer to provide a plurality of bolts 69 which havesegmental cylindrical cutouts 70 which are formed to the curvature ofthe shaft 12. The bolts 69 are mounted in bores 71 formed in bosses onthe quill shaft 16 so that the cutouts 70 bear against the shaft 12 whenthe nuts 72 are screw-threaded to the said bolts 69. This constructionalso permits the quill shaft to be formed in one piece and not split andpermits the use of a straight feather driving key 17 rather than atapered driving key.

Having fully described a preferred embodiment of our invention, it is tobe understood thatwe do not wish to be limited to the exact details ofconstruction herein set forth, which may obviously be varied withoutdeparting from the spirit of our invention as set forth in the appendedclaims.

I claim:

1. In a sand reel attachment, the combination of a quill shaft, meansfor securing the quill shaft to the sand reel shaft of an oil well a'ig,a sprocket journaled on the quill shaft, a clutch, hub splined on thequill shaft, clutch means interposed between the clutch hub and saidsprocket for releasably engaging the sprocket with the said quill shaft,a brake rim mounted on one of the elements of the said clutch means, anda brake band mounted on the brake rim.

2. In a sand reel attachment, the combination of a shaft. a sand reelsecured to the shaft, a quill shaft secured to the said shaft, asprocket journaled on the quill shaft,

clutch means for releasably Engaging the sprocket with the said quillshaft, and brake means mounted upon one of the elements of the saidclutch means. I

3. In a sand reel attachment, the combination of a quill shaft, asprocket slidably mounted on the shaft, a hub splined to the said quillshaft, a hub journaled on the shaft, means secured to the said hub forholding a clutch ring of a clutch, a spider journaled on the said quillshaft intermediate the splined hub and the journaled hub, an innerclutch plate and an outer clutch plate, means secured to the saidspiderand adapted to be actuated from the splined hub for engaging theinner and outer plates with the said clutch ring, and braking meansmounted on the said spider.

4. In a sand reel attachment, the combination of a quill shaft, asprocket journ'aled on the quill shaft, clutch means for releasablyengaging the sprocket with the said quill shaft, brake means mountedupon the ele-.

ments of the said clutch means, clutch actuating means, brake actuatingmeans," and means for securing the clutch actuating and brake actuatingmeans to a common actuating rod so that on mo-Veemnt. of therod. in

brake disengaged.

. In a sand reel attachment, the combination of a shaft, a sand reelsecuredto the shaft, a quill shaft, means for slidably securing thequill shaft to the sand reel shaft, a

sprocket journaled on the sand reel shaft,

clutch means for releasably engaging the sprocket with the said quillshaft, and brake means mounted upon one of the elements of the saidclutch means.

6 In combination with a sand reel shaft having a-sand reel securedthereto, of an attachment comprising a quill shaft, a plurality of boltshaying cutouts formed to approximately the curvature of the said shaftmounted in bores formed in bosses on the said quill ,shaft',a featherdriving key loctween the shaft and said quill shaft, clutch meansmounted on the said quill shaft, drive means operably connected with thesaid clutch means, and braking means mounted upon one oftthe elements ofthe said clutch means. I I

Signed at Torrance, California, this 24th day of September, 1926. 1 r nEDWARD TIM LEWIS n. ZERBE.

one direction the clutchis engaged and the

